Jamaal Charles' standoff with the Kansas City Chiefs didn't last long.

The sides agreed to terms on a two-year contract extension Wednesday, and Charles was headed to training camp with the rest of the Chiefs' veterans, two people with knowledge of the negotiations told USA TODAY Sports.

The extension raises Charles' compensation from $3.9 million to $8.3 million in 2014 and includes $18.1 million in new money, according to one of the people, who spoke on condition of anonymity because the deal hadn't been announced.

QB Russell Wilson watches from the Seahawks practice facility in Renton, Wash., as a Marines swimmer jumps from a helicopter into Lake Washington during a military demonstration July 31. (Photo: Ted S. Warren, AP)

Kansas City Chiefs running backs coach Eric Bieniemy gives instruction to Jamaal Charles during a NFL training camp, Wednesday, July 30, 2014 on the Missouri Western State University campus in St. Joseph. Mo. (Photo: Todd Weddle, AP)